Originally Posted By: Cristobal
As with a lot of BTOG threads, a lot of you guys are not answering the question. I have noted that many times on other people's BITOG threads. It's annoying. It's like asking a question about Canadian whiskey and getting told all about wine from Crete.
I have a lot of different oil weights in my stash. This is just the latest change. I am not going to change it early. I am not about to dump any of it. I am not going to drain it partially, as that is just Micky-Mouse nonsense.
My specific question was about the MMO. A LOT of guys run MMO with their oil anyway. I am at a loss as to why some of you are freaking out over it. Again, will the MMO lower the viscosity if I add a quart, and by about how much? I presume it will.
The car is spec'd for 5W-30 or 10W-30. It is a 1996 Avalon with a 1MZ-FE engine. I have run everything from 5W-20 to 15-W-50 in it over the last 20 years with good results.
My the way, a buddy of mine has been running MMO for over 300,000 miles in his old Toyota truck, a quart with every change.
Yes, MMO will lower the viscosity and increase the volatility as well as dilute the additive package. I doubt any of those three things would be significant. As somebody else said, if you are just going to be there a week, run it as it sits, it isn't worth screwing with.